Estimate your solar system size, monthly savings, payback period, and CO₂ reduction. Powered by real data from 19,000+ solar panels.
Input your monthly electricity bill, local electricity rate, and sun hours for your region.
Our algorithm calculates optimal system size, panel count, costs, savings, and environmental impact.
Browse recommended solar panels from our database of 19,000+ models to find the perfect fit.
This tool provides estimates based on industry averages and real panel specs. Actual costs vary by installer, location, and system design. Always consult a certified solar installer.
A peak sun hour (PSH) is 1 hour of sunlight at 1000W/m² intensity. The US average is 4-5 PSH/day. Southern regions get more, northern regions get less.
No, this calculator estimates a grid-tied solar system without battery storage. Adding batteries increases cost but provides backup power.
The US federal Investment Tax Credit (ITC) allows you to deduct 30% of your solar installation cost from federal taxes. Many states offer additional incentives.